Vulnerability · Published May 19, 2026 · Assigned by apache
CVE-2026-27173Apache Airflow CNCF Kubernetes provider: JWT Token Exposure in KubernetesExecutor Command-Line Arguments
High 8.7
In plain English
A high-severity security flaw in Apache Airflow CNCF Kubernetes provider from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
JWT tokens that were used by workers in Kubernetes Executors have been exposed to users who had read only access to Kuberentes Pods. This could allow users with just read-only access to perform actions that were only available to running tasks via Task SDK and potentially allow to modify state of Airflow Database for tasks.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | apache-airflow-providers-cncf-kubernetes | 10.17.0 | GHSA-524w-vq63-2xhf |
| PyPI | apache-airflow-providers-cncf-kubernetes | 10.17.0 | PYSEC-2026-2365 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Airflow CNCF Kubernetes provider | 0 – before 10.17.0 |
Weakness: CWE-538 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L